5 papers
Structure and Memory Control Self-Diffusion in Active Matter
Akinlade Akintunde, Stewart A. Mallory
Despite extensive progress in characterizing the emergent behavior of active matter, the microscopic origins of self-diffusion in interacting active systems remain poorly understoo…
Inferring Surface Slip in Active Colloids from Flow Fields Using Physics-Informed Neural Networks
Parvin Bayati, Stewart A. Mallory
The directed motion of active colloids is governed by spatial variations in surface chemistry and interfacial stress, yet these properties remain extremely difficult to measure dir…
Sedimentation equilibrium as a probe of the pressure equation of state of active colloids
Yunhee Choi, Elijah Schiltz-Rouse, Parvin Bayati +1
We introduce a theoretical and computational framework for extracting the pressure equation of state (EoS) of an active suspension from its steady-state sedimentation profile. As E…
Single-File Diffusion of Active Brownian Particles
A. Akintunde, P. Bayati, H. Row +1
Single-file diffusion (SFD) is a key mechanism underlying transport phenomena in confined physical and biological systems. In a typical SFD process, microscopic particles are restr…
Orbits, spirals, and trapped states: Dynamics of a phoretic Janus particle in a radial concentration gradient
Parvin Bayati, Stewart A. Mallory
A longstanding goal in colloidal active matter is to understand how gradients in fuel concentration influence the motion of phoretic Janus particles. Here, we present a theoretical…